Christmas tree solar light string



FIG. 1 is a front perspective view of a Christmas tree solar light string, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines in the drawings illustrate the portions of the Christmas tree solar light string, which form no part of the claimed design. 

CLAIM The ornamental design for a Christmas tree christmas tree solar light string, as shown and described. 